package com.t18;

import java.io.*;
import java.util.Random;

import static net.mindview.util.Print.print;

/**
 * Created by xuyiwei on 2018/9/4.
 */
class Data implements Serializable {
    private int n;
    public Data(int n) { this.n = n; }
    public String toString() { return Integer.toString(n); }
}

public class Worm implements Serializable {
    private static Random rand = new Random(47);
    private Data[] d = {
            new Data(rand.nextInt(10)),
            new Data(rand.nextInt(10)),
            new Data(rand.nextInt(10))
    };
    private Worm next;
    private char c;
    // Value of i == number of segments
    public Worm(int i, char x) {
        print("Worm constructor: " + i);
        c = x;
        if(--i > 0){  next = new Worm(i, (char)(x + 1));}
    }
    public Worm() {
        print("Default constructor");
    }
    public String toString() {
        StringBuilder result = new StringBuilder(":");
        result.append(c);
        result.append("(");
        for(Data dat : d)
            result.append(dat);
        result.append(")");
        if(next != null)
            result.append(next);
        return result.toString();
    }
    public static void main(String[] args)
            throws ClassNotFoundException, IOException {
        Worm w = new Worm(6, 'a');
        print("w = " + w);
        ObjectOutputStream out = new ObjectOutputStream(
                new FileOutputStream("worm.out"));
        out.writeObject("Worm storage\n");
        out.writeObject(w);
        out.close(); // Also flushes output
        ObjectInputStream in = new ObjectInputStream(
                new FileInputStream("worm.out"));
        String s = (String)in.readObject();
        Worm w2 = (Worm)in.readObject();
        print(s + "w2 = " + w2);
        ByteArrayOutputStream bout =
                new ByteArrayOutputStream();
        ObjectOutputStream out2 = new ObjectOutputStream(bout);
        out2.writeObject("Worm storage\n");
        out2.writeObject(w);
        out2.flush();
        ObjectInputStream in2 = new ObjectInputStream(
                new ByteArrayInputStream(bout.toByteArray()));
        s = (String)in2.readObject();
        Worm w3 = (Worm)in2.readObject();
        print(s + "w3 = " + w3);
        /**Worm constructor: 6
         Worm constructor: 5
         Worm constructor: 4
         Worm constructor: 3
         Worm constructor: 2
         Worm constructor: 1
         w = :a(853):b(119):c(802):d(788):e(199):f(881)
         Worm storage
         w2 = :a(853):b(119):c(802):d(788):e(199):f(881)
         Worm storage
         w3 = :a(853):b(119):c(802):d(788):e(199):f(881)
         */
    }
}
